The small fuel tank that the factory puts into these short boxes, isn’t much account when you’re towing. 9mpg and I’m finding I’m stopping about every 200 miles or so. With 60 foot boats on the trailer, you really need a truck-stop otherwise everyday gas stations make things interesting. And it seems that truck-stops aren’t spaced every 200 miles.

Just picked up a 100 gal, transfer tank to put in the truck bed. Its set up for a barrel pump. At best, I’d like to put an electric pump in the tank and have it hooked up to the truck, to be an extra tank. I could just flip a switch and fill up the stock tank when its low and never have to stop. The catch, I only drive across the country a couple of times a year, (when I want this big tank) the rest of the time, I want the truck bed back to be able to use it. Is their a way to set this up to remove the tank? Say with quick disconnect fuel lines? I can use the hoist in the shop to lift out the tank, but I’m not sure how I can plumb it all in? Am I crazy?

A100gal fuel tank will be a little to big to help you. to much weight in bed of truck.You will probably get 6miles to gal. A60 gal. tank might work a little better. this is what I use.

The company has a truck with a 100gal tank in it, non removable and pulling the same trailer, the milage is right aound 9mpg.

But if I find the weight is an issue I can only fill it up 1/2 way.

Any ideas on the quick release?

I would call the customer service department at Transfer Flow 1-800-442-0056. I'm sure they have had the question ask before and may have some ideas or look on line for a shop thats local that installs fuel tanks.

just remember you are adding 600lbs or so to the back of your truck, you may need to adjust your pin weight to lighten it up a bit.